 /*******************************************************************************
  * Copyright (c) 2004, 2005 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.internal.part;

 import org.eclipse.ui.internal.components.framework.Components;
 import org.eclipse.ui.internal.components.framework.IServiceProvider;
 import org.eclipse.ui.internal.part.components.interfaces.IFocusable;
 import org.eclipse.ui.internal.part.multiplexer.IDelegatingContext;

 /**
  * @since 3.1
  */
 public class DelegatingFocusable implements IFocusable {

     private IDelegatingContext context;
     
     public DelegatingFocusable(IDelegatingContext context) {
         this.context = context;
     }
     
     /* (non-Javadoc)
      * @see org.eclipse.ui.internal.part.components.interfaces.IFocusable#setFocus()
      */
     public boolean setFocus() {
         IServiceProvider active = context.getActive();

         if (active == null) {
             return false;
         }
         
         IFocusable focusable = (IFocusable)Components.getAdapter(active, IFocusable.class);
         if (focusable == null) {
             return false;
         }
         
         return focusable.setFocus();
     }

 }

